02009cam a2200433 i 4500 359777306 TxGeo 20181005120000.0 171212s2018||||||||||||||||||||||||eng|u 2017057176 9780062659033 hbk. 0062659030 hbk. (OCoLC)1019837849 TxGeo rda Holt, Hannah. The diamond and the boy : the creation of diamonds & the life of H. Tracy Hall / by Hannah Holt ; illustrations by Jay Fleck. Creation of diamonds and the life of H. Tracy Hall. Diamond and the boy, The : the rock cycle of graphite & the life of H. Tracy Hall. First edition. New York, NY : Balzer + Bray, an imprint of HarperCollinsPublishers, 2018. 1 volume (unpaged) : color illustrations ; 25 cm. txt rdacontent n rdamedia nc rdacarrier sti rdacontent rdamedia rdacarrier Includes bibliographical references. "Before a diamond is a gem, it's a common gray rock called graphite. Through an intense trial of heat and pressure, it changes into one of the most valuable stones in the world. Before Tracy Hall was an inventor, he was a boy--born into poverty, bullied by peers, forced to work at an early age. However, through education and experimentation, he became one of the brightest innovators of the twentieth century, eventually building a revolutionary machine that makes diamonds"-- Provided by publisher. Ages 4-8. Grades K to 3. 20181102. Hall, H. Tracy. Chemists United States Biography. Diamonds, Artificial. Diamond mines and mining. Fleck, Jay. QS5